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| author | Xin Long <lucien.xin@gmail.com> | 2019-10-29 01:24:32 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-10 11:25:35 +0100 |
| commit | 41a230fef787315d982dd915ef2a33a136e9a1d5 (patch) | |
| tree | 487efe99da22133a708c69522dea7286257578f8 /net | |
| parent | 0d50fc2bb4c748951c05280716113cffc3efbb7f (diff) | |
vxlan: check tun_info options_len properly
[ Upstream commit eadf52cf1852196a1363044dcda22fa5d7f296f7 ]
This patch is to improve the tun_info options_len by dropping
the skb when TUNNEL_VXLAN_OPT is set but options_len is less
than vxlan_metadata. This can void a potential out-of-bounds
access on ip_tun_info.
Fixes: ee122c79d422 ("vxlan: Flow based tunneling")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions